Method Of Manufacturing A Cover Material For A Molded Part Of A Motor Vehicle And A Cover Material Of A Molded Part Of A Motor Vehicle

Abstract

This disclosure relates to a method of manufacturing a cover material for a molded part of a motor vehicle and to a respective cover material. The method includes the following: providing a cover skin which is provided with a seam or perforation and comprises a face and a back; and applying a back layer to the back of the cover skin, wherein, prior to applying the back layer, the seam or perforation is sealed on the back of the cover skin by applying a liquid, gelatinous or paste-like sealing material to the back of the cover skin above the seam or perforation.

What is claimed is: 
     
         1 . A method of manufacturing a cover material for a molded part of a motor vehicle, comprising:
 providing a cover skin which is provided with a seam or perforation and comprises a face and a back; and   applying a back layer to the back of the cover skin,   
       wherein, prior to applying the back layer, the seam or perforation is sealed on the back of the cover skin by applying a liquid, gelatinous or paste-like sealing material to the back of the cover skin over the seam or perforation. 
     
     
         2 . The method of  claim 1 , wherein the sealing material is applied by brushing, rolling, roller application, spraying, printing, immersion or flooding. 
     
     
         3 . The method of  claim 1 , wherein the sealing material is at least one of an activated and cured sealing material before the back layer is applied. 
     
     
         4 . The method of  claim 3 , wherein the sealing material is activated by heat treatment, pressure treatment, treatment with a gas, a liquid and/or another component, a catalyst or combinations thereof. 
     
     
         5 . (canceled) 
     
     
         6 . The method of  claim 3 , wherein the sealing material is cured by heat treatment, irradiation with ultraviolet light, pressure treatment, treatment with a gas, a liquid and/or another component or combinations thereof. 
     
     
         7 . The method of  claim 1 , wherein the sealing material includes an adhesive. 
     
     
         8 . The method of  claim 7 , wherein the adhesive is selected from the group consisting of methyl methacrylate adhesives, radiation-curing adhesives, cationic epoxy adhesives, epoxide resin adhesives, polyurethane adhesives, solvent-type adhesives, dispersion adhesives, contact adhesives, two-component adhesives, and combinations thereof. 
     
     
         9 . The method of  claim 1 , wherein the sealing material includes at least one of:
 a plastisol;   a gel or a paste;   a foamed plastic or a foamable material; and   a two-component material.   
     
     
         10 . (canceled) 
     
     
         11 . (canceled) 
     
     
         12 . (canceled) 
     
     
         13 . The method of  claim 1 , wherein the cover skin is a slush skin. 
     
     
         14 . The method of  claim 1 , wherein the back layer is applied by back foaming, back injection or pressure forming. 
     
     
         15 . The method of  claim 1 , wherein the sealing material remains flexible after it has been applied. 
     
     
         16 . A cover material of a molded part for a motor vehicle, comprising:
 a cover skin which is provided with a seam or perforation and comprises a face and a back; and   a back layer on the back of the cover skin, wherein   
       between the back layer and the cover skin in the region of the seam or perforation, a sealing material is applied to the back of the cover skin, which has a liquid, gelatinous or paste-like initial state and forms a flexible layer. 
     
     
         17 . The cover material of  claim 16 , wherein the sealing material includes an adhesive. 
     
     
         18 . The cover material of  claim 17 , wherein the adhesive is selected from the group consisting of methyl methacrylate adhesives, radiation-curing adhesives, cationic epoxy adhesives, epoxide resin adhesives, polyurethane adhesives, solvent-type adhesives, dispersion adhesives, contact adhesives, two-component adhesives, and combinations thereof. 
     
     
         19 . The cover material of  claim 16 , wherein the sealing material includes at least one of:
 a plastisol;   a gel or a paste;   a foamed plastic or a foamable material; and   a two-compartment material.   
     
     
         20 . (canceled) 
     
     
         21 . (canceled) 
     
     
         22 . (canceled) 
     
     
         23 . The cover material of  claims 16 , wherein the cover skin is a slush skin. 
     
     
         24 . The cover material of  claim 16 , wherein the back layer includes a foamed layer. 
     
     
         25 . The cover material of  claim 16 , wherein, in the region of the seam or perforation between the cover skin and the back layer, an additional sealing material made of a solid material comprising one of a knitted fabric, woven fabric, non-woven or fleece material or a film is inserted, the additional sealing material being impregnated with the liquid, gelatinous or paste-like sealing material. 
     
     
         26 . The cover material of  claim 16 ,
 wherein, in the region of the seam or perforation between the cover skin and the back layer, no additional sealing material made of a solid material is inserted.   
     
     
         27 . A trim part for a motor vehicle, the trim part including:
 a substrate and a cover skin provided over the substrate;   the cover skin including a seam or perforation and comprising a face and a back;   the trim part further including:   a back layer on the back of the cover skin, the back layer being sandwiched between the substrate and the cover skin;   wherein between the back layer and the cover skin in the region of the seam or perforation, a sealing material is applied to the back of the cover skin, which has a liquid, gelatinous or paste-like initial state and forms a flexible layer.